MCQ
Which of the following is not electrophile
- ✓$C{H_3} - C{H_2} - \mathop O\limits^ \oplus {H_2}$
- B$C{H_3} - Br$
- C$Br_2$
- D$CH_3-CH=CH_2$
✓
Answer
Correct option: A.
$C{H_3} - C{H_2} - \mathop O\limits^ \oplus {H_2}$
a
The order of reactivity of the benzene rings toward the electrophilic substitution when it is substituted with a activating group increases as the substituents on the ring are groups that donate electrons. $- CH _3$ is an activating group which makes benzene more reactive towards electrophile while- $COOH$ is a deactivating group which makes it less reactive.
The order of reactivity of the benzene rings toward the electrophilic substitution when it is substituted with a activating group increases as the substituents on the ring are groups that donate electrons. $- CH _3$ is an activating group which makes benzene more reactive towards electrophile while- $COOH$ is a deactivating group which makes it less reactive.
The order reactivity towards the eletrophilic substitution of the compounds Toluene($I$)$\,>\,$ benzene($II$) $\,>\,$ Benzoicacid($III$)
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following have $3C-2e^-$ bond
$I.$ $Al_2Cl_6$ $II.$ $B_2H_6$
$III.$ $Fe_2Cl_6$ $IV.$ $Si_2H_6$
→$I.$ $Al_2Cl_6$ $II.$ $B_2H_6$
$III.$ $Fe_2Cl_6$ $IV.$ $Si_2H_6$
Aquatic animals use $.........$ dissolved in water to respire:
→Which of the following is least soluble
Give the symbol of the elements of lowest atomic number that has three $2p$ electrons
→How many electrons can fit in the orbital for which : $n = 3$ and $l = 1\ ?$
→Determine the absolute configurations of the labeled carbons ($a$ and $b$)
→The following reaction goes to completion in lime kiln because : $\mathrm{CaCO}_3 \rightleftharpoons \mathrm{CaO}+\mathrm{CO}_2(\mathrm{~g})$
→When a hydrocarbon A undergoes complete combustion it requires $11$ equivalents of oxygen and produces $4$ equivalents of water. What is the molecular formula of $A$ ?
→Total possible stereo isomer from given compound will be
→$\begin{array}{*{20}{c}}
{C{H_3} - CH = CH - CH - CH - C{H_3}} \\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\mkern 1mu} {\mkern 1mu} |{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,{\mkern 1mu} {\mkern 1mu} |{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,OH{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,{\mkern 1mu} {\mkern 1mu} \,\,\,{\mkern 1mu} {\mkern 1mu} OH\,\,}
\end{array}\,$
For a non $-$ volatile solute :
→